Top 20 Proscan 42LA45H 42 in. LCD TV Questions & Answers


Could of gotten voltage surge
Try anther outlet

Proscan 42LA45H... | 205 views | 0 helpful votes


Try another set to see if does the same - if so, then it is your box. If not it is the tv. If still under warranty have it fixed before the no sound becomes permanent.

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I am sorry Sir, the display panel is bad. If you purchased it new, it should under factory's warranty. Please call Proscan for a warranty repair.

Proscan Customer Service:
1-800-968-9853 (US and Canada)

Proscan 42LA45H... | 397 views | 0 helpful votes


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Proscan 42LA45H... | 60 views | 0 helpful votes


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Proscan 42LA45H... | 154 views | 0 helpful votes


Hi Lisa,
It appears to be back light failure. Please consult a local TV Tech to fix it.

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs are given.

Proscan 42LA45H... | 58 views | 0 helpful votes


Run the scan. If that does not do it see if you can reset the electronics to default condition. Many sets have a reset switch or a combination of keys on remote to accomplish this. U might have to check on the web site if your manual makes no reference to either of these alternatives.

Proscan 42LA45H... | 52 views | 0 helpful votes


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Search the site by type in the brand name to your device, in the "Search box at the top right of the display window".

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Was a child playing with the remote? In Setup menu, check the Color level, is it all the way down?

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Your universal remote has a code search feature you can use to search for an appropriate code for your Proscan TV. If a thorough search through all codes stored in the remote fails, you may have to try another universal remote.

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Your screen is going out

Proscan 42LA45H... | 52 views | 1 helpful votes


Reduce screen resolution when showing high res pictures.

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Have you made sure your power switch ( I/O )is switched to the "I" position?

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If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

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Is there power to the outlet? Check your circuit breakers!

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It may not control all functions for tv ,only on,off , vol, not menu auto program... try www.directtv.com .

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prscanvideo.com

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"Main Board" ~ it's the board where your cable, video player and everything else plugs up to. Part of the board has become defective. I would start right away finding a replacement. If I can assist you further please feel free to contact me.
Col. Dana Gillespie

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